Energy Management Energy Meter Type EM21 72R Retro-Fit Class A (kWh) according to EN50470-3 Class 2 (kWh) according to EN62053-21 Accuracy 0.5% RDG (voltage), 1% RDG (current) Energy meter Instantaneous variables readout: 3 DGT Energies readout: 6+1 DGT System variables: W, var, PF, Hz, Phase-sequence. Single phase variables: V , V , A, PF LL LN Energy measurements: total kWh and kvarh TRMS measurements of distorted sine waves (voltages/currents) Self power supply Dimensions: 4-DIN modules and 72x72mm Protection degree (front): IP40 Application adaptable display and programming procedure (Easyprog function) Easy connections management Including 3 miniature split-core current sensors 10mm (90A), 16mm (150A) and 24mm (250A) diameter Detachable display Multi-use housing: for both DIN-rail and panel holes mounting applications Product Description How to order EM21 72R VV5 3 X O X X Model Three-phase energy meter (front) protection degree. with removable front LCD Current measurements car- Range code display unit. The same unit ried out by means of exter- System can be used either as a nal miniature split-core cur- Power supply DIN-rail mounting or a pan- rent sensors (included) and Output 1 el mounting energy meter. voltage measurements car- Output 2 This general purpose three- ried out either by means of Option phase energy meter is suit- direct connection or by able for both active and means of potential trans- reactive energy metering formers. EM21-72R is pro- for cost allocation but also vided, as standard, with a for main electrical parame- pulsating output for active ter measurement and energy retransmission. In retransmission (transducer addition a 2-wire RS485 function). Housing for DIN- communication port is rail mounting with IP40 available as an option. Type Selection Range codes System Power supply Output 1 VV2 (*): 400V AC, 90A LL 3 (*): balanced and X (*): Self power supply O (*): Single static output (by current sensor) unbalanced load: from 18V to 260VAC (opto-mosfet) VV3 (**): 400V AC, 150A LL 3-phase, 4-wire VLN, 45 to 65 Hz (by current sensor) 3-phase, 3-wire (connection VL1-N) VV5 (**): 400V AC, 250A LL 2-phase, 3-wire (by current sensor) 1-phase, 2-wire Output 2 Options (*) as standard. (**) on request. X (*): None X (*): None S (**): RS485 port Specifications are subject to change without notice EM2172R DS ENG 230617 1EM21 72R Input specifications Rated inputs System type: 3 Overload status EEE indication when the Current type Not isolated (by CT). Note: value being measured is the external current trans- exceeding the Continuous formers can be connected inputs overload (maximum to earth individually. measurement capacity) Current range Max. and Min. indication Max. instantaneous vari- (by current sensors) VV2: 90A ables: 999 energies: VV3: 150A 999 999.9 or 9 999 999. VV5: 250A Min. instantaneous vari- Voltage (direct or by VT/PT) VVx: 400VLL ables: 0 energies 0.0. Accuracy (Display + RS485) Iref: see below Un: see LEDs Red LED (Energy con- below sumption) ( 25C 5C, R.H. 60%, 0.01 kWh by pulse 48 to 62 Hz) if VT ratio is <4 (VV2) or <2 Voltage range (VV3 or VV5) VVx model Un: 160 to 260VLN (277 to 0.1 kWh by pulse if VT ratio 450VLL). is <40 (VV2) or <23 (VV3 or Current range VV5) VV2 model Iref: 15A, Imax: 90A 1kWh by pulse if VT ratio is VV3 model Iref: 20A, Imax: 150A >40 (VV2) or >23 (VV3 or VV5 model Iref: 20A, Imax: 250A VV5) Current From 0,05Iref to 0,1Iref: Max frequency 16Hz, according to (1% RDG + 3DGT) EN50470-3 From 0,1Iref to Imax: Green LED (on the terminal (1% RDG + 1DGT) blocks side) for power on Phase-neutral voltage In the range Un: (steady) and communica- (0.5% RDG +1DGT). tion status: RX-TX (in case Phase-phase voltage In the range Un: of RS485 option only) (1% RDG +1DGT). blinking. Frequency Range: 45 to 65Hz Measurements See List of the variables resolution: 1Hz that can be connected to: Active power (2%RDG +2DGT). Method TRMS measurements of Power Factor 0.001+2%(1.000 - PF distorted wave forms. RDG) . Coupling type By means of external CTs. Reactive power (3%RDG +2DGT). Crest factor 3 (VV2: 230A max. peak) Active energy class A according to EN50470-3 Current Overloads Without valid measurement class 2 according to Continuous VV2: 120A EN62053-21. VV3: 300A Start up current VV2: 75mA. VV5: 360A VV3, VV5: 100mA Voltage Overloads Temperature drift 200ppm/C PF=1 Continuous 1.2 Un Phase error: 0.05/C For 500ms 2 Un Sampling rate 1600 samples/s 50Hz, Voltage input impedance 1900 samples/s 60Hz Self-power supply Power consumption: <2VA. Display refresh time 1 second Frequency 45 to 65 Hz. Display 2 lines Key-pad Two push buttons for vari- st 1 line: 7-DGT, able selection and pro- nd 2 line: 3-DGT or gramming of the instru- st 1 line: 3-DGT + 3-DGT, ment working parameters. nd 2 line: 3-DGT. Type LCD, h 7mm. Instantaneous variables read-out 3-DGT. Energies Imported Total: 6+1DGT or 7DGT 2 Specifications are subject to change without notice EM2172R DS ENG 230617